PK – Polyketone PK GF30AKROTEK® PK-VM GF 30 8 natural (6983)
AKROTEK® PK-VM GF 30 8 natural (6983) is a 30% glass fibre reinforced, low viscous polyketone with high stiffness and strength and light inherent color.
Please note that the material is NOT suitable anymore for drinking water contact and does NOT meet the requirements according to KTW, DVGW W270, ACS, WRAS as well as NSF61 and does NOT correspond to the European food guideline EU 10/2011 as well as to the American FDA 21 CFR guidline.
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 8200 MPa conditioned 8200 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 130 MPa conditioned 120 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,5 % conditioned 2,5 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 60 kJ/m² conditioned 60 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 14 kJ/m² conditioned 14 kJ/m²
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 215 °C
Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3) 220 °C
Burning rate (UL 94) 1,6mm Wall thickness HB Class
Burning rate (<100 mm/min) (> 1 mm Thickness | FMVSS 302) +
Density (23°C | ISO 1183) 1,48 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 0,6-0,7 %
Molding shrinkage (flow | ISO 294-4) 0,3-0,5 %
Molding shrinkage (transverse | ISO 294-4) 0,8-1,0 %
The listed values are recommendations. Higher values should be used for higher glass loadings. We recommend only de-humidifying or vacuum dryers. Extensive drying can cause filling problems and surface defects.
|Drying time||0 - 4 h|
|Drying temperature (τ ≤ -30°C)||80°C|
|Processing moisture||0,02 - 0,1%|
|Feed section||60 - 80°C|
|Temperature zone 1 - Zone 4||220 - 260°C|
|Nozzle temperature||230 - 260°C|
|Melt temperature||230 - 260°C|
|Mold temperature||60 - 120°C|
|Holding pressure, spec.||300 - 800 bar|
|Back pressure, spec.||30 - 70 bar|
|Injection speed||medium to high|
|Screw speed||8 - 15 m/min|
The molding machine needs to be purged with polyolefines before and after processing of AKROTEK® PK! There is a risk of cross linking caused by reactions with POM or PA as well as unsuitable master batches! Cross linking is visible through dark spots! In this case purge immediately with polyolefines.
All specifications and information given on this website are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKRO®, AKROMID®, AKROLEN®, AKROLOY®, AKROTEK®, ICX® and PRECITE® are registered trademarks of the Feddersen Group.